A coupled volume-of-fluid/level-set method for simulation of two-phase flows in unstructured meshes
This paper presents a methodology for simulation of two-phase flows with surface tension in the framework of unstructured meshes, which combines volume-of-fluid with level-set methods. While the volume-of-fluid transport relies on a robust and accurate polyhedral library for interface advection, sur...
| Authors: | , , , , |
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| Format: | article |
| Publication Date: | 2015 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/80871 |
| Online Access: | https://hdl.handle.net/2117/80871 https://dx.doi.org/10.1016/j.compfluid.2015.10.005 |
| Access Level: | Open access |
| Keyword: | Two-phase flow--Mathematical model Finite element method Level set methods Unstructured meshes Level-set method Volume-of-fluid method Finite-volume method Two-phase flow Elements finits, Mètode dels Corbes de nivell, Mètodes de Dinàmica de fluids computacional Àrees temàtiques de la UPC::Enginyeria mecànica |
| Summary: | This paper presents a methodology for simulation of two-phase flows with surface tension in the framework of unstructured meshes, which combines volume-of-fluid with level-set methods. While the volume-of-fluid transport relies on a robust and accurate polyhedral library for interface advection, surface tension force is calculated by using a level-set function reconstructed by means of a geometrical procedure. Moreover the solution of the fluid flow equations is performed through the fractional step method, using a finite-volume discretization on a collocated grid arrangement. The numerical method is validated against two- and three-dimensional test cases well established in the literature. Conservation properties of this method are shown to be excellent, while geometrical accuracy remains satisfactory even for the most complex flows. |
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